JPH09242009A - Joint board of boundary edge stone and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability and prevent generation of deterioration or damage caused by change in weather conditions or vehicular vibrations by froming joint board bodies laving almost the same shape of elastic material on a continuous surface of boundary block, forming a hollow part in the body, and froming an air ventilation hole at a lower surface. SOLUTION: Adhesive is applied to a lower side open groove 6 positioned at both continuous surfaces 2 of a joint board body 1, then the body 1 is pressed into between boundary blocks from a lower side chamfered part 7, and when the circumferential surface is fitted to be in correspondence with the boundary block the excessive adhesive comming out on the upper surface is swept. In this case, when the body 1 is pressed into between the blocks, air in a hollow part 4 is gradually discharged from an air ventilation hole 5 since the hollow part 4 is pressed by both continous surfaces 2 so that the central part of the continuous surface originally swelled becomes flat to be in close contact with the continous surface of the boundary block and to be fixed with repelling force by elasticity. The body 1 and the boundary block are surely fixed by the adhesive applied to the lower side open groove 6 accordingly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint board for concrete boundary curbs that can maintain airtightness by using an elastic molded product instead of a joint material for a concrete boundary block used for road construction or land boundaries. It is a thing.

[0002]

2. Description of the Related Art Conventionally, when concrete boundary blocks are used in road works or civil works such as land boundaries, the boundary blocks are placed side by side, and a mortar with a thin tip is sufficient between the boundary blocks. It was pushed into and kept airtight. After a short while, the mortar contracted and the mortar was pressed again on the upper surface to finish, and then the excess mortar adhering to the concrete block surface was removed to complete the work. Recently, instead of concrete, a rubber plate or a foamed rubber sponge is inserted and bonded. (Utility model registration No. 30068
No.15)

[0003]

However, the work of pushing the mortar between the boundary blocks not only requires a great deal of labor, but also the work cannot be performed in bad weather, so that the work is delayed. It was difficult to proceed as planned. Then, due to expansion and contraction of the concrete boundary block due to changes in climatic conditions and vibration of the vehicle, the joint gap may fluctuate, which may cause the gap to expand, the joint to deteriorate and chip, or to lose its function. There was a flaw. In addition, there are some publicly available products that insert a rubber plate or foamed rubber sponge instead of concrete, but all of them are filled with adhesive from the small holes in the upper part of the peripheral surface to the groove on the joint surface. However, since there is no escape path for air, the adhesive does not enter, so the adhesive fixing function is insufficient. Further, since it is the same as the joint width on the outer peripheral surface, the gap in the joint portion fluctuates, the gap expands, and it is exposed as it is, which is unsightly.

The present invention has been made to solve these problems. That is, the present invention can maintain airtightness for a long period of time without losing its function due to deterioration or damage of joints even when weather conditions change or vehicle vibrations, and it is extremely simple regardless of weather conditions. In addition, anyone can efficiently implement the boundary block, and even if the gap in the joint part fluctuates, and the gap expands, it can always maintain a beautiful state without being exposed It is to provide a joint board.

[0005]

Means for Solving the Problems In a joint plate main body 1 having substantially the same shape on a connecting surface of a boundary block 8, the joint plate main body 1 has a hollow portion 4 made of an elastic material and an air inlet / outlet hole 5 on a lower surface thereof. In addition, the central portion of the connecting surface 2 is formed thicker than the outer peripheral thickness, and the lower open groove 6 is provided in the connecting surface 2.
Further, the joint plate body 1 is attached to the road-side outer peripheral surface 3 of the joint plate body 1.
Is to provide the eaves portion 9 with a width exceeding the thickness of.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1 is a partially cutaway perspective view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG. 1 and 2, 1 is a joint plate body, 2 is a connecting surface, 3 is an outer peripheral surface, 4 is a hollow portion 5 is an air inlet / outlet hole, 6 is a lower opening groove, and 7 is a chamfered portion. . The joint surface 2 of the joint plate main body 1 is formed in the same shape as the boundary block 8 and the outer circumference, and the thickness of the outer periphery is about 13 to 15 mm. From the center slightly above the joint surface to the lower end surface. Two lower open grooves each having a depth of about 1 mm are provided. Further, chamfers 7 are provided at the lower corners of both connecting surfaces 2.
Is provided. The joint plate body 1 is made of an elastic material such as rubber or resin and has a wall thickness of about 5 mm to form a hollow portion 4 over the entire inside, and an air inlet / outlet hole 5 is provided at the center of the lower surface to perform blow molding. It was done. After the die-cutting, compressed air is quickly injected through the air inlet / outlet hole 5 before the resin is solidified, and the hollow portion 4 is inflated to be solidified so that the thickness of the central portion of both connecting surfaces becomes about 20 mm. .

The one shown here is a pedestrian road boundary block, and the quick contact surface is a rectangle with one side inclined and the upper end being chamfered with a round shape. The connecting surface is R-shaped, and in the case of the ground boundary block, the connecting surface is square or rectangular.

FIG. 3 is an explanatory view showing the operation of the present invention.
Is a perspective view showing the usage state and usage method of the present invention,
How to use will be described. As shown in FIG. 4, the boundary blocks 8 are placed side by side first, and the adhesive is applied to the lower open grooves 6 on both connecting surfaces 2 of the joint plate body 1 prepared in advance, and the joint plate body 1 is lowered. It can be pushed from the chamfered portion 7 on the side between the boundary blocks, and when the peripheral surface fits in the boundary block, the excess adhesive that sticks out on the upper surface can be wiped off at the end. As shown in FIG. 3, when the joint plate body 1 is pushed into between the boundary blocks 8, the air in the hollow portion 4 gradually pushes out from the air inlet / outlet holes 5 by being pushed by the connecting surfaces of the boundary blocks 8 on both sides, and initially expands. The exposed central portion becomes flat and closely adheres to the connecting surface of the boundary block 8, and is repelled and fixed by the elasticity of the resin. Then, the joint plate body 1 and the boundary block 8 are securely fixed to each other with the adhesive applied to the lower open groove 6. The chamfered portion 7 on the lower side of the joint plate body 1 is for facilitating the initial work of fitting between the boundary blocks. Since the joint plate body 1 is always repulsively fixed between the boundary blocks 8 by the elasticity of the resin, depending on the material of the joint plate body 1 and how the hollow portion 4 expands the central portion of the connecting surface 2. It is also conceivable that the lower open groove 6 and the adhesive are not required.

FIG. 5 is a perspective view showing another embodiment of the present invention.
6 is a cross-sectional view taken along the line BB of FIG. 5, FIG. 7 is a perspective view showing a usage state of the embodiment shown in FIG. 5, and FIG. 8 is a cross-sectional view taken along the line CC of FIG. Compared with the above-mentioned embodiment, this another embodiment shown in each of the above figures is different in that an eaves portion 9 is provided on the road side peripheral surface of the joint plate body 1, and when this is used, it is shown in FIG. The lower surface of the eaves portion 9 to the boundary block 8
Touch the top surface of. Others are the same. By providing this eaves portion 9, as shown in FIG. 8, even if the corner portion of the joint surface of the boundary block 8 is slightly damaged, it is covered and finished neatly. The eaves portion 9 does not necessarily have to be integrated with the joint plate body 1, and may be a separate eave member.

[0010]

According to the present invention, the following excellent effects can be obtained.

As described in claim 1, the joint mortar work is unnecessary because the joint plate main body that fits the joint surface of the boundary block in advance is stamped and inserted between the boundary blocks. 1) Anyone can easily do construction work. (2) Since the construction can be done regardless of the weather, the construction period can be greatly shortened. (3) Because of its simple shape, it can be mass-produced and is inexpensive.
Therefore, the construction cost can be significantly reduced, which is extremely economical. (4) The joint plate body made of resin is lightweight and easy to transport and store. (5) The nighttime safety can be improved by applying a luminescent coating on the outer peripheral surface or mixing a fluorescent material with the material.

As described in claim 2, since the eaves portion is provided on the road side peripheral surface of the joint plate main body, (1) the gap in the joint portion fluctuates, and the gap expands to cause cracking of the block, Even if there is a deviation or if there is a small damaged portion at the corner of the block, it can always be kept in a beautiful state without being exposed. (2) It is possible to further improve the nighttime safety by applying a luminescent coating on the eaves portion or by mixing the material with a fluorescent material. (3) It can be used for directions by color and advertising space.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

2 is a sectional view taken along the line AA in FIG.

FIG. 3 is an explanatory view showing the operation of the present invention.

FIG. 4 is a perspective view showing a usage state of the present invention.

FIG. 5 is a perspective view showing another embodiment of the present invention.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a perspective view showing a use state of the embodiment in FIG.

8 is a cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

 1 Main plate main body 2 Connecting surface 3 Outer peripheral surface 4 Hollow part 5 Air inlet / outlet hole 6 Lower open groove 7 Chamfer part 8 Border block 9 Eaves part

Claims (2)

[Claims] 1. A joint plate main body 1 having substantially the same shape on a connecting surface of a boundary block 8, wherein the joint plate main body 1 is made of an elastic material and has a hollow portion 4 and an air inlet / outlet hole 5 on the lower surface thereof. A joint board for boundary curbs, characterized in that the central portion of the surface (2) is formed thicker than the outer peripheral thickness and a lower open groove (6) is provided in the connecting surface (2). 2. A joint plate main body 1 for a road having substantially the same shape as a connecting surface of a boundary block 8, and a width exceeding the thickness of the joint plate main body 1 on a road side outer peripheral surface 3 of the joint plate main body 1. Eaves part 9
The joint board of the boundary curb according to claim 1 characterized in that the joint board is provided.